Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: self-induced vibration

Sortuj według:

Ogranicz wyniki do:

Assessment of the role of structural nonlinearity in galloping energy harvesters

Sarbinowski Filip, Starosta Roman

Vibrations in Physical Systems

2021

Vol. 32, nr 2

art. no. 2021209

The study compares different variants of aeroelastic energy harvesters due to the power they generate. For this purpose, models of devices with different stiffness characteristics were prepared: linear, nonlinear, with combined stiffness and bistable. Then, using the authorial procedure, analytical expressions that describe the power of each system were determined and the influence of individual parameters on this quantity was examined. By way of optimization, the system parameters have been selected in such a way that, regardless of the flow velocity, each of them generates the maximum possible power. Based on the results obtained in this way, the advisability of using a device with combined stiffness and bistable characteristics was rejected. Moreover, it was pointed out that the linear system would provide greater efficiency for lower flow velocities.

Metoda energetyczna badania drgań samowzbudnych

Giergiel J.

Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska

2007

z. 45 {243}

55-65

W pracy podano metodę energetyczną badania drgań samowzbudnych układów mechanicznych. Podano także warunki, przy których mogą one wystąpić. Prócz badań jakościowych zamieszczono badania ilościowe, wykazując, jaki wpływ ma tłumienie i sprężystość na amplitudę i częstość drgań.

In the paper the author's energy method was used to examine the cooperation of a self--induced system with a linear and non-linear system. The conditions when these can occur were given.